81 citations · 283 across the 21 of their papers we have counts for
21 papers
Quantum transport enabled by non-adiabatic transitions
Ajith Ramachandran, Alexander Eisfeld, Sebastian Wüster +1
Quantum transport of charge or energy in networks with discrete sites is central to diverse quantum technologies, from molecular electronics to light harvesting and quantum opto-me…
In situ observation of chemistry in Rydberg molecules within a coherent solvent
Felix Engel, Shiva Kant Tiwari, Tilman Pfau +2
We often infer the state of systems in nature indirectly, for example, in high-energy physics by the interaction of particles with an ambient medium. We adapt this principle to ene…
Excitons guided by polaritons
K. Mukherjee, S. Wüster
We show that an exciton on a discrete chain of sites can be guided by effective measurements induced by an ambient, non-equilibrium medium that is synchronised to the exciton trans…
Maximally entangled Rydberg-atom pairs via Landau-Zener sweeps
Dhiya Varghese, Sebastian Wüster, Weibin Li +1
We analyze the formation of maximally entangled Rydberg atom pairs subjected to Landau-Zener sweeps of the atom-light detuning. Though the populations reach a steady value at longe…
Density correlations from analogue Hawking radiation in the presence of atom losses
Yash Palan, Sebastian Wüster
The sonic analogue of Hawking radiation can now be experimentally recreated in Bose-Einstein Condensates that contain an acoustic black hole. In these experiments the signal streng…
Hyper-entangling mesoscopic bound states
Aparna Sreedharan, Sridevi Kuriyattil, Sebastian Wüster
We predict hyper-entanglement generation during binary scattering of mesoscopic bound states, solitary waves in Bose-Einstein condensates containing thousands of identical Bosons.…
Dynamics of atoms within atoms
S. Tiwari, F. Engel, M. Wagner +3
Recent experiments with Bose-Einstein condensates have entered a regime in which thousands of ground-state condensate atoms fill the Rydberg-electron orbit. After the excitation of…
Non-adiabatic dynamics in Rydberg gases with random atom positions
Ritesh Pant, Rajat Agrawal, Sebastian Wüster +1
Assemblies of highly excited Rydberg atoms in an ultracold gas can be set into motion by a combination of van-der-Waals and resonant dipole-dipole interactions. Thereby, the collec…
Tayloring Bose-Einstein condensate environments for a Rydberg impurity
S. Rammohan, A. K. Chauhan, R. Nath +2
Experiments have demonstrated that atoms excited to specific Rydberg states within Bose-Einstein condensates cause significant excitation of phonons. If the Rydberg atom is brought…
Collisions of solitary waves in condensates beyond mean-field theory
Aparna Sreedharan, Sarthak Choudhury, Rick Mukherjee +2
Bright solitary waves in a Bose-Einstein condensate contain thousands of identical atoms held together despite their only weakly attractive contact interactions. They nonetheless b…
Solitary waves explore the quantum-to-classical transition
A. Sreedharan, S Kuriyattil, S. Choudhury +3
It is an open fundamental question how the classical appearance of our environment arises from the underlying quantum many-body theory. We propose that phenomena involved in the qu…
Quantum dynamics of long-range interacting systems using the positive-P and gauge-P representations
S. Wüster, J. F. Corney, J. M. Rost +1
We provide the necessary framework for carrying out stochastic positive-P and gauge-P simulations of bosonic systems with long range interactions. In these approaches, the quantum…
Quantum Zeno suppression of dipole-dipole forces
Sebastian Wüster
We consider inter-atomic forces due to resonant dipole-dipole interactions within a dimer of highly excited Rydberg atoms, embedded in an ultra-cold gas. These forces rely on a coh…
Non-Hermitian matter wave mixing in Bose Einstein condensates: dissipation induced amplification
S. Wüster, R. El-Ganainy
We investigate the nonlinear scattering dynamics in interacting atomic Bose-Einstein condensates under non-Hermitian dissipative conditions. We show that by carefully engineering a…
Orthogonal flexible Rydberg aggregates
K. Leonhardt, S. Wüster, J. M. Rost
We study the link between atomic motion and exciton transport in flexible Rydberg aggregates, assemblies of highly excited light alkali atoms, for which motion due to dipole-dipole…
Coupling of a nano mechanical oscillator and an atomic three-level medium
A. Sanz-Mora, A. Eisfeld, S. Wüster +1
We theoretically investigate the coupling of an ultracold three-level atomic gas and a nano-mechanical mirror via classical electromagnetic radiation. The radiation pressure on the…
Switching Exciton Pulses Through Conical Intersections
K. Leonhardt, S. Wüster, J. M. Rost
Exciton pulses transport excitation and entanglement adiabatically through Rydberg aggregates, assemblies of highly excited light atoms, which are set into directed motion by reson…
Conical intersections in an ultracold gas
S. Wüster, A. Eisfeld, J. M. Rost
We find that energy surfaces of more than two atoms or molecules interacting via dipole-dipole po- tentials generically possess conical intersections (CIs). Typically only few atom…
Dynamical tunnelling with ultracold atoms in magnetic microtraps
Martin Lenz, Sebastian Wüster, Christopher J. Vale +5
The study of dynamical tunnelling in a periodically driven anharmonic potential probes the quantum-classical transition via the experimental control of the effective Planck's const…
Newton's cradle and entanglement transport in a flexible Rydberg chain
S. Wüster, C. Ates, A. Eisfeld +1
In a regular, flexible chain of Rydberg atoms, a single electronic excitation localizes on two atoms that are in closer mutual proximity than all others. We show how the interplay…
Correlations of Rydberg excitations in an ultra-cold gas after an echo sequence
S. Wuster, J. Stanojevic, C. Ates +4
We show that Rydberg states in an ultra-cold gas can be excited with strongly preferred nearest-neighbor distance if densities are well below saturation. The scheme makes use of an…